Beta Draft Confidential
16-8
1/19/05
ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
About SVCs
About Address Registration
About Address Registration
Address information in a switch is used to determine call routing; it is also used for
calling party screening. When used for route determination, the switch advertises an
appropriate subset of its configured node prefixes, port prefixes, and port addresses to
all other switches in the network. When used for calling party screening, the switch
uses the configured node prefixes, port prefixes, and/or port addresses to determine
whether or not the network should accept an SVC request.
To perform these two functions at a UNI, both the user and the network need to know
the ATM addresses that are valid at the UNI. Address registration provides a
mechanism for address information to be dynamically exchanged between the user
and the network, enabling both to determine the valid ATM addresses that are in effect
at a UNI. Address registration applies only to UNI ports on which Interim Link
Management Interface (ILMI) is enabled (see
for instructions
on how to enable ILMI on a UNI logical port). Any ILMI-eligible node or port prefix
will be transferred from all ILMI-enabled private UNI DCE ports and all
ILMI-enabled public end-system UNI DCE ports to their peer DTE devices.
ILMI-eligible prefixes include:
•
All native E.164 node prefixes
•
All 13-octet (104-bit) AESA node prefixes
•
All native E.164 port prefixes
•
All 13-octet (104-bit) AESA port prefixes
Note – Node prefixes are not exchanged from “network-to-network” UNI DCE ports.
Only port prefixes are exchanged from these ports. For address registration to work,
attached UNI devices must support ILMI.
Содержание CBX 3500
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